Top, heart and base notes explained

Cologne notes explained simply: top notes are what you smell in the first minutes, heart notes are what you smell through the middle of the day, and base notes are what is still on your skin at night. A fragrance is built in those three layers on purpose, and they leave in that order because lighter materials evaporate before heavier ones. Once you know which layer you are smelling, a note list stops being a poem and starts being a forecast.

Cologne notes explained: what are top notes?

The opening. Citrus, light herbs, pepper, anything bright and quick. Top notes are the reason a cologne smells so good in the store and the reason that impression means so little. They ride out on the alcohol, and alcohol is gone in minutes. Bergamot is the classic top note, which is why it sits at the front of Reverie and Savanna alike.

Top notes have one job: make the first impression and get out of the way. Judging a scent by them is like judging a dinner by the bread basket.

What are heart notes?

The middle, sometimes called the mid or the body of the scent. Florals, spices, tea, green notes, fruit. Heart notes come forward as the top fades and carry the scent for the bulk of the wear. This is the part of a cologne the people around you actually meet, because by the time you leave the house the opening is already gone.

If a scent turns on you an hour in, it is almost always the heart you dislike, whatever you thought of the top in the shop. That is why I tell anyone testing a scent to walk away and come back later: the heart is the honest version.

What are base notes?

The foundation. Woods, resins, vanilla, musk, amber, oud. Base notes are the heaviest materials in the bottle, so they evaporate last and stay longest. They also anchor the lighter notes; a cologne with a thin base disappears early no matter how good the opening was.

By the end of the day a scent is all base. If you like what you smell on your collar at midnight, you like the base. Oud Timber is built almost entirely down here, oud, sandalwood and vanilla, which is why it feels heavier and sits closer than a citrus scent.

How do you read the notes on a real scent?

Take the six Bale scents, which list three headline notes each, roughly top to base.

• Savanna: bergamot up top, pepper in the heart, ambroxan in the base. Fresh and clean, with the ambroxan keeping it going.
• Bleu Hour: citrus, then incense, then woods. Opens fresh, settles dry.
• Reverie: bergamot, ginger, black tea. Light, a little warm, and the softest of the six at the end.
• Avant: pineapple, birch, musk. Fruit first, smoke in the middle, a soft musk tail.
• Rogue 540: saffron, amber, cedar. Warm and sweet from the heart onward.
• Oud Timber: oud, sandalwood, vanilla. Deep from the first minute and deeper by evening.

Read the last note first. It tells you what you will smell like for most of the wear. Then read the first note to know what the opening will feel like. The middle tells you whether the two will get along. Our beginner's guide to fragrance families shows how those notes sort into fresh, floral, woody and amber.

Do the notes behave the same on everyone?

No. Skin chemistry, warmth and how dry your skin is all change the speed at which notes leave. Warm skin pushes top notes off faster and can make a base smell sweeter. Dry skin lets a scent fade early because there is nothing for it to hold on to. That is the practical case for a scented body butter: a shea and cocoa butter base on damp skin gives the fragrance something to sit in, and the scent stays 12+ hours on most skin.

It also means the note list is a map rather than a promise. Two men can wear the same bottle and smell like different scents by lunch. The only way to know how the layers run on you is to wear one for a full day, which is what testing on skin, not paper is for.

Quick answers

What are the three layers of a cologne?

Top notes, heart notes and base notes. Top notes open and leave first, heart notes carry the middle hours, base notes stay to the end. The layers blend into each other rather than switching on and off.

Which notes last longest?

Base notes: woods, resins, vanilla, musk, oud. They are the heaviest materials and evaporate slowest. A scent with a strong base, like Oud Timber or Rogue 540, will still be there at night.

Why does a cologne smell different after an hour?

Because the top notes have gone and the heart has taken over. Nothing has gone wrong; you are smelling the second layer. Wait for the base before you decide whether you like the scent.

Can I tell a scent's family from its notes?

Usually. Look at the heart and base. Citrus and light woods point to fresh, florals to floral, cedar and oud to woody, vanilla and amber to amber.

Want to smell the three layers run on your own skin? The Discovery Set has a sample jar of each scent, enough to wear a different one each day.